Viridor announced this week that along with Newbury-based LAT Water, it had secured a £548,000 grant from BEIS’s industrial energy efficiency accelerator. The 21-month pilot project will take place at Viridor’s Broadpath landfill site in Tiverton, Devon.
The project will use low-grade heat from Viridor’s landfill gas engines at ambient pressure to concentrate the leachate and extract the water.
According to Viridor, the technique has a number of environmental benefits. As well as retaining water resources, Viridor says the project could reduce CO2 emissions by as much 80% because the leachate would not need to be transported in tankers for treatment off site.
Terry Murphy, Viridor’s landfill director, said his company’s landfill sites are already designed to extract landfill gas which can be transformed to create electricity.
“To have the potential to take this process even further and harness heat from the landfill gas process and use it to take pure water from leachate is an innovative solution,” he said.
He added that the potential of treating leachate on site would also not only “significantly reduce costs but also impact positively on the road miles associated with tankering this material away from landfill sites”.